piston pin

noun

1. wrist pin.

Word History and Origins

Origin of piston pin¹

First recorded in 1895–1900

Example Sentences

The Wrights' piston was typical of the time, with the rings pinned in the grooves to prevent turning and the piston pin locked in the piston with a setscrew.

From Project Gutenberg

Figure 13.—Original 6-cylinder engine: a, cylinder assembly and valve parts; b, bottom side of piston; c, piston, piston pin and connecting rod; d, valve mechanism; e, crankshaft and flywheel.

From Project Gutenberg

The piston pin was locked in the piston by the usual set screw, but here no provision was made for the alternate practice of clamping the rod on the pin.

From Project Gutenberg

The rods were for the first time made of I-section forgings, a major departure, machined on the sides and hand finished at the ends, with a babbit lining in the big end, the piston pin bearing remaining steel on steel.

From Project Gutenberg

The piston pin is made of chrome nickel steel, bored hollow and hardened.

From Project Gutenberg